Oligonucleotides targeting asthma inflammation processes

ABSTRACT

The present invention relates to methods and compositions for inhibiting inflammatory processes (such as asthma) in the lungs, wherein oligonucleotides targeting IgE receptors and NfkappaB are administered via an aerosolized microsphere formulation.

PRIORITY

This application claims priority to U.S. Provisional Application No. 61/406,409, filed Oct. 25, 2010, the contents of which is hereby incorporated by reference in its entirety herein.

GRANT INFORMATION

Not applicable.

1. INTRODUCTION

The present invention relates to methods and compositions for inhibiting inflammatory processes (such as asthma) in the lungs, wherein oligonucleotides targeting IgE receptors and NFkappaB are administered via an aerosolized microsphere formulation.

2. BACKGROUND OF THE INVENTION

Allergic asthma is a complex inflammatory disease of the lungs characterized by variable airflow obstruction, airway hyperresponsiveness (AHR) and airway inflammation (1-7). The inflammatory process consists of a chronic infiltration by mast cells, basophils, eosinophils, dendritic cells and B/T-lymphocytes, each playing a distinct role as part of a network of local inflammation (2, 4, 6-12).

The key biomarker of allergic asthma is the IgE antibody, now considered to be the critical “gatekeeper” of the human allergic response (4, 10, 13-23). Mast cells and basophils are the main cellular modulators of IgE bioactivity and largely responsible for the generation of the autacoids that amplify the asthmatic phenotype in lungs (1, 6, 7, 10, 24-30). These autacoids affect not only the recruitment and function of other immune cells in the vicinity, but also influence the patency and remodelling of the environment (extracellular matrix, smooth muscle, blood vessels) given the close anatomic disposition of lung mast cells with airway, smooth muscle and vasculature (1, 6, 7, 10, 24-30).

Although the interaction of IgE with its specific allergen is important, the relationship between IgE and its receptors on cells is critical in allergic asthma. The hallmark of an allergic response is immediate hypersensitivity where IgE binds two cell surface receptors (FcERI and FcERII/CD23), although immediate hypersensitivity is mediated mainly via FcERI (also known as the high affinity IgE receptor) (1-3, 13, 14, 19-24, 31-43). Crosslinking of IgE-bound FcERI, especially on mast cells, leads to the early phase of the allergic response, involving mast cell degranulation and the synthesis of lipid mediators, cytokines and chemokines (1-3, 13, 14, 19-24, 31-43). These proteins will then initiate the late phase which peaks a few hours later and involves the recruitment and activation of other inflammatory cells at sites sensitive to allergen.

Allergens also activate IgE-sensitised antigen-presenting cells, like dendritic cells, which in turn promote IgE production by B-cells to replenish the IgE consumed in the allergic reaction, thereby maintaining mast cell and antigen presenting cell sensitisation (1-3, 6, 7, 11-14, 19-24, 27, 31-51). FcERI is highly expressed on tissue mast cells, quite likely as a result of IgE-mediated upregulated FcERI expression (1-3, 6, 7, 11-14, 19-24, 27, 31-51). FcERI is expressed as an abg2 tetramer on mast cells and basophils and as an ag2 trimer on human but not mouse monocytes, eosinophils and smooth muscle cells (13, 14, 20, 23-25, 28, 52-54).

IgE also binds to a low affinity receptor termed FcERII, and identified as CD23 (35-37, 39, 40, 55, 56). A C-type lectin, CD23 is constitutively expressed on B-cells, airway smooth muscle cells, dendritic cells, lung alveolar macrophages, neutrophils and eosinophils (35-37, 39, 40, 55, 56). IgE acts as a positive regulator of CD23 cell surface expression, just as is the case for FcERI and so does IL-4 (35-37, 39, 40, 55, 56). CD23 activation results in IL-1b, IL-6 and TNF-alpha production by macrophages and dendritic cells and IgE binding on B-cells and dendritic cells enhances the uptake, processing and presentation of allergen epitopes to allergen-specific T-cells and B-cells (35-37, 39, 40, 55, 56). Degranulation and production of autacoids is dependent on immediate signaling of FcERI, however, late signaling events require transcriptional activation and maintenance of gene expression of autacoids and enzymes involved in their biosynthesis (1, 11, 25-27, 57).

NF-kB is a critical regulator of gene transcription in inflammation and is responsive to FcERI signaling in mast cells and dendritic cells (11, 17, 44, 46, 57-59). NF-kB consists of a number of homodimeric and heterodimeric proteins that belong to the Rel family and collectively transactivate proinflammatory genes in a wide variety of immune cells including mast cells, basophils, dendritic cells and lymphocytes (60-64). NF-kB signaling is controlled by a complex series of kinase networks at multiple levels in response to extracellular receptor and non-receptor signals (60-64). Pharmacologic inhibitors of NF-kB and upstream kinases are currently at various stages of development for inflammatory disease including allergy (17, 44, 46, 47, 57, 58, 60-68). Many of the proinflammatory cytokines and enzymes involved in autacoid synthesis expressed in activated mast cells, basophils and dendritic cells are regulated by NF-kB (17, 44, 46, 47, 57, 58, 60-68) and are downregulated in response to NF-kB inhibitors.

Given the role of the IgE molecule in the asthmatic inflammatory response, reducing its levels or inhibiting its actions on mast cells, basophils and dendritic cells could have a major impact on asthma prevention and therapy of active disease. A humanised monoclonal antibody directed against IgE is now in clinical use (Omalizumab; Xolair) and an anti-CD23 antibody (IDEC-152) is also in development after exhibiting a good safety profile (3, 5, 9, 19, 22, 34, 36-38, 42, 43, 55). These therapies, attractive as they are, do not completely eliminate IgE levels. “Escaped” IgE can therefore still activate acute processes in mast cells, basophils and dendritic cells. In alternate approaches, antisense DNA technology has been used to downregulate FcERI and NF-kB (44, 69-72) or other molecules involved in allergic asthma (Respirable AntiSense OligoNucleotides; “RASONs”; 73-78), but successful application of these methodologies has been impeded by the short half-life of ODNs and the need for an effective concentration of molecules to accumulate in lung target tissue.

3. SUMMARY OF THE INVENTION

The present invention relates to methods and compositions for inhibiting inflammatory processes (such as asthma) in the lungs, wherein oligonucleotides (“ONs”) targeting IgE receptors and NFkappaB are administered via an aerosolized microsphere formulation. It is based, at least in part, on the discoveries that (i) when this mixture of ONs is administered to mast cell and dendritic cell lines in vitro, the production of proinflammatory cytokines is considerably attenuated, and (ii) microspheres were found to reach a large population of lung cells following intratracheal instillation.

4. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1. Fluorescence activated cell sorting (“FACS”) measurement of FcERI downregulation on the surface of MC9 mastocytoma cells, following incubation of the cells with DNP-specific mouse IgE and crosslinking with DNP-BSA (at 8 hours).

FIG. 2. Incubation of bone marrow derived dendritic cells from BALB/c and C3H/HeJ mouse strains in vitro with NFkB decoy oligonucleotide downregulates cell surface FcERI (10 micromolar final oligo concentration in culture).

FIG. 3A-B. (A) AS-FcERI downregulation of FcERI on MC9 and P815 cell lines in vitro. Cells were treated with 2 μM (final) mix of (1:1) antisense FcERI plus antisense CD23 overnight. Parallel cultures were then treated with DNP-specific IgE followed by DNP-BSA. Five hours later, cells were stained with specific anti-FcERI or CD23 fluorescently tagged antibodies. FACS analysis was then used to determine mean fluorescence intensity (geometric mean) representing mean levels of receptor. Error bars represent the SEM of triplicate parallel cultures, (B)Phospho-SyK content in AS-FcERI treated cell lines in vitro. Cells were treated with 2 μM (final) mix of (1:1) antisense FcERI plus antisense CD23 overnight. Parallel cultures were then treated with DNP-specific IgE followed by DNP-BSA. Five hours later, cells lysates (clarified) were scanned for phosph-Syk using Luminex technology. Data shown as fold-increase in phospho-Syk content over untreated cell p-Syk content (error bars are SEM of triplicate wells).

FIG. 4A-B. (A) Fluorescence imaging of lungs excised from mice administered fluorescent microspheres intratracheally, 24 hours post-administration. The lungs and surrounding tissue at the left are from mice administered vehicle control. The lungs and surrounding tissue on the right are from mice administered the fluorescent microspheres. Imaging was performed using an IVIS Lumina system. (B) Fluorescent microsphere accumulation in bronchoaviolar lavage cells following intratracheal instillation. Cells were isolated from the bronchoaviolar lavage fluid (“BALF”) of the mice whose lungs are shown in FIG. 4A and stained for CD11b or FcERI, FACS was performed on the cells isolated 30 minutes or 24 hours after microsphere instillation inside the trachea. Percent gated cells refers to lice cells in the total BALF collected. FL refers to microsphere fluorescence and Q2 refers to the upper right quadrant of the FACS plot.

FIG. 5. Histamine concentration in BAL fluid from mice with or without OVA-induced asthma treated with either PBS alone (“no particles”), empty microspheres or microspheres loaded with FcER1a antisense oligonucleotides.

FIG. 6A-C. Cytokine levels in broncheolar lavage fluid (“BALF”) of mice, either with or without OVA_induced asthma, treated with either PBS (“nothing”), unloaded microspheres (“empty”), or FcER1-loaded microspheres (“fcer1”). (A) G-CSF, GM-CSF, IFNg, IL-1b, IL-2, IL-4, IL-5, and IL-6; (B)IL-9, IL-10, IL-12(p70), IL-13, IL-15, IL-17, IP10, and KC; (C) MCP-1, MIP-1a, RANTES, and TNFa.

5. DETAILED DESCRIPTION OF THE INVENTION

For purposes of clarity, and not by way of limitation, the detailed description of the invention is divided into the following subsections:

(i) therapeutic ONs;

(ii) microsphere formulations; and

(iii) methods of treatment.

5.1 Therapeutic ONs

ONs that may be used according to the invention may target the high-affinity IgE receptor FcERI, the low-affinity IgE receptor CD23, or the p65 subunit of NfkappaB. For human therapeutic applications, preferably the human mRNA sequence is the basis for the target, but the invention also provides for use of non-human sequences that may be used either in animal model systems for confirmation of therapeutic effects and for dosage adjustment, for example, but not limited to, the murine sequence or a related rodent sequence, or for the treatment of non-human animals suffering from airway inflammation.

FcERI occurs on cells as a tetramer composed of an alpha, beta, and two disulfide-linked gamma chains. Genes encoding any of these subunits may be targets according to the invention. As one non-limiting example, the target may be the human alpha subunit for example, and not by way of limitation, having at least a portion of the sequence as set forth in SEQ ID NO: 5. As another non-limiting example, the target may be the murine alpha subunit for example, and not by way of limitation, having at least a portion of a sequence as set forth in SEQ ID NO: 6. As another non-limiting example, the target may be the human beta subunit for example, and not by way of limitation, having at least a portion of a sequence as set forth in SEQ ID NO: 7. As another non-limiting example, the target may be the murine beta subunit for example, and not by way of limitation, having at least a portion of a sequence as set forth in SEQ ID NO: 8 or a sequence which is at least 95 percent homologous thereto. As another non-limiting example, the target may be the human gamma subunit for example, and not by way of limitation, having at least a portion of a sequence as set forth in SEQ ID NO: 9. As another non-limiting example, the target may be the murine gamma subunit for example, and not by way of limitation, having a sequence as set forth in SEQ ID NO: 10.

In further non-limiting embodiments of the invention, an ON may target CD23. As one non-limiting example, the target may be human CD23 for example, and not by way of limitation, having at least a portion of a sequence as set forth in SEQ ID NO 11: As another non-limiting example, the target may be murine CD23 for example, and not by way of limitation, having at least a portion of a sequence as set forth in SEQ ID NO: 12.

In further non-limiting embodiments of the invention, an ON may target NFkappaB. As one non-limiting example, the target may be human NFkappaB for example, and not by way of limitation, having at least a portion of a sequence as set forth in SEQ ID NO: 13. As another non-limiting example, the target may be murine NfkappaB for example, and not by way of limitation, having at least a portion of a sequence as set forth in SEQ ID NO: 14. In further non-limiting embodiments of the invention, an ON may target a binding sequence of the NF-KappaB transcription factor where the ON is a decoy for the CONSENSUS BINDING SEQUENCE OF NF-kappaB and its homologues (i.e. RelB and all other transcription factors binding to the NF-kappaB consensus sequence (SEQ. ID 5′-CTGGGGACTTTCCAT-3′ (SEQ ID NO:1)); for example but not by way of limitation the ON may comprise (5′-CTGGGGACTTTCCAT-3′ (SEQ ID NO:1)), for example in a double stranded duplex where a first strand comprises an ON 1=5′-CTGGGGACTTTCCAT-3′ (SEQ ID NO:1) and a second strand comprises ON2=5′ ATGGAAAGTCCCCAG 3′ (SEQ ID NO:2).

An ON according to the invention may be entirely or predominantly comprised of deoxyribonucleotides (an “ODN”) or entirely or predominantly comprised of ribonucleotides (an “ORN”), and may comprise one or more modified nucleotide, for example, nucleotides joined via a phosphorothioate bond. An ON may be an antisense ON, a catalytic ON, or an RNAi or siRNA ON, as are known in the art. An ON may be single stranded or double stranded or have single stranded as well as double stranded portions. In preferred non-limiting embodiments, the ON is an ODN.

An “antisense ON” refers to an ON that is complementary to at least a portion of a primary transcript or mRNA and that inhibits the expression of a target gene (see U.S. Pat. No. 5,107,065). The complementarity of an antisense ON may be with any part of the specific gene transcript, i.e., at the 5′ non-coding sequence, 3′ non-coding sequence, introns, or the coding sequence. An antisense ON may be between about 10 and 100 nucleotides, or between about 10 and 50 nucleotides, or between about 15 and 100 nucleotides, or between about 15 and 50 nucleotides, or between about 10 and 35 nucleotides, or between about 15 and 35 nucleotides.

A catalytic ON is an ON that has enzyme catalytic activity and comprises a portion homologous to its target gene. For example, but not by way of limitation, a catalytic RNA may be referred to as a “ribozyme” and may catalyze hydrolysis and/or aminotransferase activity.

siRNA typically comprises a polynucleotide sequence identical or homologous (e.g., at least 90 percent or at least 95 percent or at least 98 percent homologous) to a portion of a target gene linked directly, or indirectly, to a polynucleotide sequence complementary to the sequence of the target gene (or fragment thereof) (see, for example, Hunter, 1999, Curr. Biol. 9:R440-442; Hamilton el al., 1999, Science 286:950-952; Ding, 2000, Curr. Opin. Biotechnol. 11:152-156). In a nonlimiting example, a RNAi or siRNA molecule may be between about 6 and 50 nucleotides. In particular nonlimiting examples, the RNAi or siRNA molecule is between about 10 and 35 nucleotides, or between about 10 and 25, or between about 15 and 25 nucleotides. An siRNA may optionally comprise a polynucleotide linker sequence of sufficient length to allow for the two polynucleotide sequences to fold over and hybridize to each other; however, a linker sequence is not necessary. The linker sequence is typically designed to separate the antisense and sense strands of siRNA sufficiently as to limit the effects of steric hindrance and allow for the formation of dsRNA molecules and preferably does not hybridize with sequences within the hybridizing portions of the siRNA molecule.

Ribozymes, antisense polynucleotides, and siRNA molecules may be synthesized either in vivo or in vitro. Endogenous RNA polymerase of the cell may mediate transcription in vivo, or cloned RNA polymerase can be used for transcription in vivo or in vitro. For transcription from a transgene in vivo or an expression construct, a regulatory region (e.g., promoter, enhancer, silencer, splice donor and acceptor, polyadenylation) may be used to transcribe the RNA strand {or strands); the promoters may be known inducible promoters such as baculovirus. Inhibition may be targeted by specific transcription in an organ, tissue, or cell type. The RNA strands may or may not be polyadenylated; the RNA strands may or may not be capable of being translated into a polypeptide by a cell's translational apparatus.

The ON may be chemically or enzymatically synthesized by manual or automated reactions. The ON may be synthesized by a cellular nucleic acid polymerase or a bacteriophage polymerase (e.g, T3, T7, SP6). If synthesized chemically or by in vitro enzymatic synthesis, the ON may be purified prior to use. For example, an ON can be purified from a mixture by extraction with a solvent or resin, precipitation, electrophoresis, chromatography, or a combination thereof. The ON may be dried for storage or dissolved in an aqueous solution. The solution may contain buffers or salts to promote annealing, and/or stabilization of the duplex strands.

Homology may be determined using standard techniques, for example using software known in the art such as BLAST or PASTA.

Specific, non-limiting examples of ON that may be used according to the invention include: homologous FcERI-alpha (human/mouse from 3′ end of sequence): gtg tee aca gca aac aga ate (SEQ ID NO:3); homologous (mouse/human) CD23 (also from 3′ end): gca gaa ggc gte gtt cca {SEQ ID NO:15); mouse FcERI-alpha: cca gtg acc ate gcc ect g (SEQ ID NO:16); mFcERIa control: cag ggg cga tgg tea ctg g (SEQ ID NO:17); hFcERlalpha-1: aca gta gag tag ggg att cca tgg cag gag cca tct tct tea tgg act cc (SEQ ID NO:18); hFcERlalpha-2: tte aag gag ace tta ggt ttc tga ggg act get aac acg cca tet gga ge (SEQ ID NO:19); and hFcERII (CD23): tet ctg aat att gae ctt cct cca tgg egg tee tgc ttg gat tet ccc ga (SEQ ID NO:20).

Activity of an ON according to the invention may be determined by an in vitro assay, for example in a cell-free system or cell culture, to test the ability of the ON to inhibit the expression of its target protein. As specific, non-limiting examples, validation of inhibitory activity may be performed using rodent and human mast cell and basophil cell lines such as LAD2, P815, Ku812 and MC9 by FACS ascertainment of surface levels of target and by steady state quantitative RT-PCR and/or Western blot analysis. Dendritic cells lines may also be used in the testing. As one potential criterion, an ON may be selected for use or further study based on its demonstrating, in cell culture, relatively less , off-target knockdown activity using genome-wide expression array technology on cell line transcripts (88-91). In addition or alternatively, the activity of the ON may be assessed by determining its affect on autacoid and cytokine production in culture supernatants, for example using ELISA/Luminex 24 hours following FcERI crosslinking using IgE:DNP-HSA exposure, or by ascertaining nuclear p65 NF-kB levels by standard mobility shift assay (49, 51, 68, 69, 79, 92-97).

Additionally, activity of an ON may be confirmed using an in vivo assay. For in vivo testing an ON may preferably be comprised in a microsphere, as discussed below. As a specific, non-limiting example, ON, preferably comprised in microspheres, may be administered to Balb/c mice by aerosol into the respiratory tract using a Bennet nebuliser. The mice may be placed inside a Plexiglas chamber and may be administered 10-200 micrograms of dry ON-containing powder per mouse, where the average diameter of each ON-containing particle is preferably about 1-2 microns and the flow rate may be from 10-20 liters/min for 20-60 minutes. Comparisons may be made to mice exposed to formulated “scrambled” oligonucleotide sequences and, where microspheres are used, to “empty” microspheres. At various times after treatment, mice in the treatment and non-treatment groups may be euthanized and the effectiveness of ON at inhibiting expression and/or functionality of target may be assessed, for example by measuring the levels of FcERI alpha, beta and gamma chain, CD23 and p65 NF-kB steady state mRNA in bronchiolar lavage fluid cells and/or by FACS measurement of cell surface FcERI a chain and CD23 in parallel cells. Efficacy may also be assessed in bioassays in vitro, where bronchiolar lavage fluid cells isolated from treated mice may be exposed to FcERI (FcERI crosslinking by IgE-dinitrophenyl-HSA exposure) and NF-kB activation (exposure to LPS) followed by cytokine and autacoid measurement in culture supernatant along with ascertainment of the degree of FcERI-dependent intracellular signaling (phospho-Syk, phospho-Lyn by Western blot) (12, 49-51, 68, 69, 79, 92-106).

Effectiveness of an ON may also be assessed in a model for asthma, for example but not limited to the ovalbumin-induced and the house dust mite allergen-triggered models of acute and chronic allergic asthma (reviewed in 107, 108). Specifically, airway function may be measured using the flow interrupter method on the basis of the response of total respiratory system resistance to saline and increasing doses of intravenous methacholine as well as whole body plethysmography to calculate enhanced pause response to methacholine (12, 50, 98-106). In addition to these physiologic measurements of airway function, lung histology may be assessed and morphometry may be performed to determine extracellular matrix (and collagen) deposition and remodeling, airway epithelium mucus content, smooth muscle cell proliferation, density and morphometry of goblet cell hyperplasia.

5.2 Microsphere Formulations

The present invention provides for microspheres that carry one or more ON, as described above, and for formulations comprising said microspheres.

In certain embodiments, microspheres carry one or more species of ON that targets the high-affinity IgE receptor FcERI.

In certain embodiments, microspheres carry one or more species of ON that targets the low-affinity IgE receptor CD23.

In certain embodiments, microspheres carry one or more species of ON that targets the p65 subunit of NfkappaB.

According to certain embodiments of the invention, a plurality of (two or more) different ONs as described above are comprised in a microsphere formulation. In such embodiments, an individual microsphere may carry only one species of ON, and a therapeutic formulation may comprise a mixture of microspheres bearing different ONs, or, alternatively, an individual microsphere may itself carry a mixture of ONs, or, alternatively, a combination of microspheres some carrying one species of ON and others carrying more than one species of ON may be used.

A microsphere is a particle having a diameter of between about 10 nanometers and 10 micrometers or between about 100 nanometers and 1 micrometer or between about 200 nm-2 micrometers or between about 200-400 nanometers.

ON-carrying microspheres may be prepared by methods known in the art. In particular, non-limiting embodiments, the microspheres may be prepared using a method as set forth in Kovacs et al., 2009, J. Biomaterials Science 20:1307-1320 or Zheng et al., 2006, J. Biomater. Sci. Polymer Edn. 17(12):1389-1403, both incorporated by reference in their entireties herein.

In particular, non-limiting embodiments of the invention, polycation-coated poly(D,L-lactide-co-glycolide) (“PLGA”) microspheres may be used as carriers of ONs into the lungs. The PLGA microspheres preferably have an average hydrodynamic size between 300-500 nm, such that they may be rapidly internalized by phagocytic cells and are sufficiently small to pass through conducting airways to reach the deep lung, yet with density high enough to prevent them from being exhaled (for example, a density of between about 0.5-1 g/cm³. In particular non-limiting embodiments, the polycation may be a peptide. Said cationic peptide may be of a length between about 8 and 25 amino acids and may preferably comprise between about 10 and 20 cationic amino acid residues such as histidine, ornithine or ariginine to facilitate ODN uptake and to promote ODN escape from endosomes or phagosomes upon internalization (80). In a specific, non-limiting embodiment, the cationic peptide comprises Orn-Orn-Orn-Orn-Orn-Orn-Orn-Orn-Orn-Orn-His-His-His-His-His-His (SEQ ID NO:4).

In one specific, non-limiting embodiment, the microsphere may be a PLGA-Ni particle prepared using a double emulsion (w/o/w) solvent evaporation method. 90 mg PLGA and 0.6 mg 1,2-dioleoyl-m-glycero-3-((N(5-amino-1-carboxypentyl)-imino-diacetic acid]-succinyl) nickel salt)) (“DOGS-NTA-Ni”) may be dissolved in 3 ml methylenechloride. To this organic phase 200 μL double distilled water may be added and the mixture sonicated (20 W) for 2 minutes. This primary emulsion may be added to 20 ml double distilled water and the resulting mixture may be allowed to evaporate for four fours to remove the methylenechloride. Particles may be washed twice in double distilled water and recovered by centrifugation. The resulting solids may be confirmed using Fourier transform infrared spectroscopy to contain DOGS-NYA-Ni. ON (preferably ODN)loading may be accomplished by first coating the particles (30 μL from 4.5 mg/ml stock) with O10H6 (ornithine (10)-histidine (6); 60 μg), SEQ ID NO:4 followed by addition of one or more type of ON (0.06 nmoles) in 300 μl double distilled water. Equilibration of each component may be achieved using gentle shaking for 30 minutes at room temperature.

In another specific, non-limiting embodiment of the invention, PLGA/O10H6 microspheres may be prepared using a double emulsion (w/o/w) solvent evaporation technique (Jain, 2000, Biomaterials 21:2475). 5 μg O10H6 may be added to 200 μL of an aqueous solution containing 40 μg of one or more type of ON (preferably an ODN) and gently shaken for 0.5 hours at room temperature. This aqueous solution may be incorporated into a methylene chloride solution of PLGA (3% w/v) by sonication. A Fisher model 100 sonic microprobe may be used to introduce 24 W of energy (over 2 minutes) to form this water-in-oil emulsion. The primary emulsion may be added drop-wise into 20 ml of an aqueous solution of PVA (0.5% w/v) to form a water-in-oil-in-water emulsion. The resulting double emulsion may be stirred for about 4 hours in a chemical fume hood to allow the methylene chloride to evaporate. Particles may be recovered by ultracentrifugation and washed twice with double distilled water to remove excess PVA and un-trapped ON.

ON-carrying microspheres may optionally be freeze-dried, stored, and reconstituted in distilled water. Addition of sucrose (2% w/v) prior to freeze-drying may improve recovery.

The formulation comprising ON-carrying microspheres may be a suspension, an emulsion, or a dry powder.

Formulations to be used therapeutically may further comprise a suitable pharmaceutical carrier , optionally a preservative, and optionally one or more additional active agent, for example, but not limited to, a bronchodilator such as theophylline, albuterol, salmeterol, formoterol, a leukotriene modulator such as Montelukast, Zafirlukast, or Zileuton, and/or an anti-inflammatory agent such as fluticasone, budesonide, mometasone, beclomethasone, or ciclesonide and/or a mast cell stabilizer such as cromolyn or nedocromil, or an antibiotic, in therapeutically beneficial concentrations. The formulation may optionally comprise a propellant and/or additional excipients as appropriate.

5.3 Methods of Treatment

In certain non-limiting embodiments, the present invention provides for a method of treating an inflammatory lung disorder comprising administering, to a subject in need of such treatment, an effective amount of microspheres carrying a mixture of ONs comprising at least one ON that inhibits expression of an IgE receptor and at least one ON that inhibits expression of NFkappaB. In specific, non-limiting embodiments of the invention, the following combinations of ON may be used:

-   an ON targeting FcERI alpha, beta or gamma chain and an ON targeting     NFkappaB p65, optionally further comprising an ON targeting CD23.

In certain specific non-limiting embodiments, the present invention provides for a method for reducing an inflammatory response in the lungs, for example in the context of treating asthma, comprising administering, to a subject in need of such treatment, an effective amount of microspheres carrying an ON that targets FcERI alpha. For example, but not by way of limitiation, reduction in the inflammatory response may be measured as a decrease in a cytokine selected from the group consisting of GM-CSF, IFNg, IL-9, IL-15, IL-17, KC, and TNFa.

The subject may be a human subject or a non-human subject such as a non-human primate, a rodent such as a mouse or rat, a dog, a cat, a horse, etc.

Disorders which may be treated according to the invention include but are not limited to asthma (e.g. bronchial asthma) and other IgE-related inflammatory airway disorders.

A formulation comprising an effective amount of ON-bearing microspheres as set forth above may be administered via the airway of a subject in need of such treatment. Administration to the lungs may be performed using devices known in the art, including but not limited to a nebulizer, a metered dose inhaler, or a dry powder inhaler. As an alternative to administration via the mouth, the formulation may be administered through the nose. In a specific, non-limiting embodiment of the invention, the flow rate of delivery of microspheres into the lungs is between about 10-20 L/minute for between about 20-60.

An effective amount of ON means an amount that results is an amelioration of pulmonary performance, for example, but not limited to, a subjective reduction of respiratory distress, a reduced cough, an increase in the forced expiratory volume, and/or an increase in the forced expiratory volume over 1 second/ forced vital capacity ratio, where the increase may be, for example and not by way of limitation, by at least 5 percent, or by at least 10 percent, or by at least 15 percent or by at least 20 percent or by at least 25 percent.

In specific, non-limiting embodiments of the invention, the amount of ON administered per kilogram of a subject may be between about 1-100 or between about 10-50 or between about 1-10.

In non-limiting embodiments of the invention, ON-bearing microspheres may be administered either as needed, or once a day, or at least once a day, or twice a day, or three times a day, or four times a day, or once every other day, or twice a week, or once a week, or once every two weeks, or once a month. Treatment can be on a one-time basis, using a regimen as described in the previous sentence for a limited period of time, continuously, or using a regimen interrupted by a period of non-treatment.

6. EXAMPLE: IN VITRO ON STUDIES

FIG. 1 shows FACS measurement of FcERI downregulation on the surface of MC9 mastocytoma cells, following incubation of the cells with DNP-specific mouse IgE and crosslinking with DNP-BSA (51, 69, 79). FIG. 2 shows that incubation of bone marrow derived dendritic cells from two mouse strains in vitro with NFkB decoy oligonucleotide having SEQ ID NO: 1 downregulates cell surface FcERI (10 micromolar final oligo concentration in culture). FIG. 3 shows that incubation of two relevant cell lines (MC9 mastocytoma and P815 basophil-like cells) in vitro with a combination of antisense FcERI (SEQ ID NO:2) and antisense CD23 oligonucleotide (SEQ ID NO:3) downregulates cell surface FcERI (FIG. 3A) and CD23 and is associated with suppressed tyrosine phosphorylation of FcERI-dependent Syk even when FcERI is bound by DNP-specific IgE subsequently crosslinked by BSA-DNP (FIG. 3B; by Luminex detection of phospho-specific Syk xMAP bead fluorescence; 2 micromolar final each oligo concentration in culture).

7 EXAMPLE: IN VIVO STUDIES

Microspheres made with poly-(d,l-lactide-co-glycolide), or PLGA, SEQ ID NO. 4 loaded with ODN were prepared by a double emulsion solvent evaporation method. 90 mg PLGA was dissolved in 3 ml MeCl₂. To this organic phase 200 μL deionized water was added and sonicated (20 W) for 2 min. This primary emulsion was added to 20 ml of deionized water containing 0.8% polyvinyl alcohol and the resulting mixture was allowed to evaporate for 4 h to remove MeCl₂. Particles were washed twice in deionized water and recovered by centrifugation. Particles coated with SEQID NO. 4 were loaded with ODN.

The resulting microsphere had an average diameter of 280 nm with ρ˜1 g/cm³.

FIG. 4A demonstrates that after intratracheal instillation into female Balb/c mice of 6-12 weeks of age, the microspheres populate almost the entire lung tissue and the accumulation is stable for at least 24 hours. FIG. 4B shows that in the bronchalveolar lavage fluid (“BALF”) of the mice from which the lungs shown in FIG. 4A derive, microspheres are captured by macrophage/monocytes (CD11b+ cells) as well as a superpopulation of FcERI+cells that very likely includes mast cells, basophils and dendritic cells.

Experiments were then performed to evaluate the effect of FcERI ODN-loaded microspheres in a murine model for asthma induced by ovalbumin (“OVA”) [107, 108]. Briefly, six to twelve week old Balb/c mice were sensitized on day 0 by intraperitoneal injection of 50 ug chick ovalbumin (OVA) and 2 mg alum in 200 microliters PBS. On Day 6 mice were pretreated with 30 microliters (about 50 micrograms) of particle suspension (particles were loaded with antisense FcERIa oligonucleotides at a ratio of 18.5 micrograms DNA per mg particles). The mice were placed under deep anaesthesia by inhalation of 3% isoflurane for about 5 minutes. Mice were held by the scruff of the neck in an upright supine position and 15 microliters of the particle suspension was pipetted on to each nares. Inhalation of the particle suspension was verified by audible glottal clicking as the fluid passed into the trachea. On Days 7, 8, 9, and 10 mice were again treated with 50 micrograms of AS-FcERIa particles. Following treatment, the mice were returned to their cages and allowed to recover. Thirty minutes following treatment with particle suspension, mice were challenged intranasally with 50 micrograms ovalbumin. The procedure is identical to intranasal delivery of particle suspension. Mice received 25 microliters of a 1 microgram/microliter solution of ovalbumin in PBS applied to each nares. On day 10, three hours following the final ovalbumin challenge, bronchoalveolar lavage was performed to recover intrapulmonary exudate and leukocytes.

In a first series of studies, the amount of histamine present in BALF was compared in mice either with or without OVA-induced asthma as early as 24 hours following the last OVA challenge, treated or untreated with FcERIa ODN microspheres. As can be seen in FIG. 5, where the negative controls are mice without OVA-induced asthma that were not treated with any particles (they were given phosphate buffered saline, “PBS”) or were treated with empty particles, there was a substantial increase in the histamine level in mice with OVA-induced asthma sham-treated with empty particles, but this increase was reduced by more than half in animals with OVA-induced asthma treated with FcERIa antisense ODN-carrying microparticles.

In another series of experiments, the BALF fluid of mice with or without OVA-induced asthma, either treated with FcER1 antisense ODN-loaded microspheres, PBS, or empty microspheres, was tested for the concentrations of various cytokines, including granulocyte colony-stimulating factor (“G-CSF”), granulocyte macrophage colony-stimulating factor (“GM-CSF”), interferon gamma (“IFNg”), interleukin-1beta (“IL-1b”), interleukin-2 (“IL-2”), interleukin-4 (“IL-4”), interleukin-5 (“IL-5”), interleukin-6 (“IL-6”), interleukin-9 (“IL-9”), interleukin-10 (“IL-10”), interleukin-12 (p70) (“IL-12(p70)”), interleukin-13 (“IL-13”), interleukin-15 (“IL-15”), interleukin-17 (“IL-17”), interferon-gamma-induced protein 10 (“IP-10”), keratinocyte-derived cytokine (“KC”), monocyte chemotactic protein-1 (“MCP-1”), macrophage inflammatory protein-1a (“MIP-1a”), the cytokine known as RANTES (for regulated upon activation, normal T cell expressed and secreted), and tumor necrosis factor alpha (“TNFa”). The results are shown in FIG. 6A-C. Of these, administration of the FcER1-loaded microspheres ten days following OVA primary challenge resulted in an apparent decrease in the cytokines GM-CSF, IFNg, IL-9, IL-15, IL-17, KC, and TNFa, and smaller apparent decreases inIL-1b, IL-2, IL-10, IL-12(p70), MCP-1, and RANTES. For other cytokines a smaller decrease, no apparent effect, or an increase was observed. These results show that treatment of asthmatic animals with FcER1-loaded microspheres resulted in the reduction in levels of inflammatory cytokines.

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SEQ ID NO: 1 = NFKAPPAB Consensus binding sequence 5′CTGGGGACTTTCCAT-3′ SEQ ID NO: 2 = complement of SEQ ID NO: 1 5′ ATGGAAAGTCCCCAG 3′. SEQ ID NO: 3 = Homologous FcERI-alpha (human/mouse from 3′ end of sequence): gtg tcc aca gca aac aga atc SEQ ID NO: 4 = cationic peptide Orn-Orn-Orn-Orn-Orn-Orn-Orn-Orn-Orn-Orn-His-His-His-His-His-His SEQ ID NO: 5 = human alpha subunit FcERI = ncbi Ref. No. NM_002001.2    1 agtctccagc atcctccacc tgtctaccac cgagcatggg cctatatttg aagccttaga   61 tctctccagc acagtaagca ccaggagtcc atgaagaaga tggctcctgc catggaatcc  121 cctactctac tgtgtgtagc cttactgttc ttcgctccag atggcgtgtt agcagtccct  181 cagaaaccta aggtctcctt gaaccctcca tggaatagaa tatttaaagg agagaatgtg  241 actcttacat gtaatgggaa caatttcttt gaagtcagtt ccaccaaatg gttccacaat  301 ggcagccttt cagaagagac aaattcaagt ttgaatattg tgaatgccaa atttgaagac  361 agtggagaat acaaatgtca gcaccaacaa gttaatgaga gtgaacctgt gtacctggaa  421 gtcttcagtg actggctgct ccttcaggcc tctgctgagg tggtgatgga gggccagccc  481 ctcttcctca ggtgccatgg ttggaggaac tgggatgtgt acaaggtgat ctattataag  541 gatggtgaag ctctcaagta ctggtatgag aaccacaaca tctccattac aaatgccaca  601 gttgaagaca gtggaaccta ctactgtacg ggcaaagtgt ggcagctgga ctatgagtct  661 gagcccctca acattactgt aataaaagct ccgcgtgaga agtactggct acaatttttt  721 actcaattgt tggtggtgat tctgtttgct gtggacacag gattatttat ctcaactcag  781 cagcaggtca catttctctt gaagattaag agaaccagga aaggcttcag acttctgaac  841 ccacatccta agccaaaccc caaaaacaac tgatataatt actcaagaaa tatttgcaac  901 attagttttt ttccagcatc agcaattgct actcaattgt caaacacagc ttgcaatata  961 catagaaacg tctgtgctca aggatttata gaaatgcttc attaaactga gtgaaactgg 1021 ttaagtggca tgtaatagta agtgctcaat taacattggt tgaataaatg agagaatgaa 1081 tagattcatt tattagcatt tgtaaaagag atgttcaatt tcaataaaat aaatataaaa 1141 ccatgtaaca gaatgcttct gagtaaaaaa aaaaaaaaaa aaaaaaaaaa a SEQ ID NO: 6 = murine alpha subunit FcERI = NCBI Acc. No. NM_010184    1 tattttcgaa gccatagctc tctggtgcag ttagcacctg aaggtgcagg ggcgatggtc   61 actggaatgt ctgcccagct gtgcctagca ctgctgttca tgtctcttga tgtcattctg  121 acagccactg agaaatctgt actgaccttg gacccaccat ggattagaat atttacagga  181 gagaaagtga ccctttcctg ctatgggaac aatcaccttc aaatgaactc tactactaaa  241 tggatccaca atggtaccgt ctctgaggtg aactcttcac atttggtcat tgtgagtgcc  301 accgttcaag acagtggaaa atacatatgt cagaagcaag gattgtttaa gagtaaacct  361 gtgtacttga atgtaacgca agattggctg ctccttcaga catctgctga catggtctta  421 gtccatggat cctttgacat cagatgccat ggctggaaga actggaatgt ccgcaaggtg  481 atctactaca ggaatgacca tgctttcaac tacagttatg agagccccgt ctccattaga  541 gaggccacac tgaatgacag tggcacctac cactgcaagg gctatcttag gcaggtgaaa  601 tatgaatctg acaaattcag aattgctgta gtaaaagctt acaaatgcaa gtattattgg  661 ctacaactaa ttttcccatt gttggtggcg attctgtttg ctgtggacac ggggttattg  721 ctctcaaccg aagaacagtt caaatcagtc ttggagattc agaagactgg aaaatacaag  781 aaagttgaaa ccgaactcct aacctagata catataggaa ctaatgtcat tgctgaagaa  841 gcaattctta acagtaattt tctgcagaat cctcaatagc ttctccactg tcaaaggcca  901 ctcatgtgat ccctagaaaa gtctgttcca caggaattgc ataaatgctt cattaaacca  961 actgcagctg gttatgtaac atgcaataaa tagcaaatac tcaataaaca ctgccttaat 1021 aagtta SEQ ID NO: 7 = human beta subunit FcERI = NCBI Acc No. NM_000139.4 =    1 aacccatttc aactgcctat tcagagcatg cagtaagagg aaatccacca agtctcaata   61 taataatatt ctttattcct ggacagctcg gttaatgaaa aaatggacac agaaagtaat  121 aggagagcaa atcttgctct cccacaggag ccttccagtg tgcctgcatt tgaagtcttg  181 gaaatatctc cccaggaagt atcttcaggc agactattga agtcggcctc atccccacca  241 ctgcatacat ggctgacagt tttgaaaaaa gagcaggagt tcctgggggt aacacaaatt  301 ctgactgcta tgatatgcct ttgttttgga acagttgtct gctctgtact tgatatttca  361 cacattgagg gagacatttt ttcatcattt aaagcaggtt atccattctg gggagccata  421 tttttttcta tttctggaat gttgtcaatt atatctgaaa ggagaaatgc aacatatctg  481 gtgagaggaa gcctgggagc aaacactgcc agcagcatag ctgggggaac gggaattacc  541 atcctgatca tcaacctgaa gaagagcttg gcctatatcc acatccacag ttgccagaaa  601 ttttttgaga ccaagtgctt tatggcttcc ttttccactg aaattgtagt gatgatgctg  661 tttctcacca ttctgggact tggtagtgct gtgtcactca caatctgtgg agctggggaa  721 gaactcaaag gaaacaaggt tccagaggat cgtgtttatg aagaattaaa catatattca  781 gctacttaca gtgagttgga agacccaggg gaaatgtctc ctcccattga tttataagaa  841 tcacgtgtcc agaacactct gattcacagc caaggatcca gaaggccaag gtcttgttaa  901 ggggctactg gaaaaatttc tattctctcc acagcctgct ggttttacat tagatttatt  961 cgcctgataa gaatattttg tttctgctgc ttctgtccac cttaatattc tccttctatt 1021 tgtagatatg atagactcct atttttcttg ttttatatta tgaccacaca catctctgct 1081 ggaaagtcaa catgtagtaa gcaagattta actgtttgat tataactgtg caaatacaga 1141 aaaaaagaag gctggctgaa agttgagtta aactttgaca gtttgataat atttggttct 1201 tagggttttt tttttttttt agcattctta atagttacag ttgggcatga tttgtaccat 1261 ccacccatac ccacacagtc acagtcacac acacatatgt attacttaca ctatatataa 1321 cttcctatgc aaatatttta ccaccagtca ataatacatt tttgccaaga catgaagttt 1381 tataaagatc tgtataattg cctgaatcac cagcacattc actgacatga tattatttgc 1441 agattgacaa gtaggaagtg gggaatttta ttaagttact cgttgtctgg ggaggtaaat 1501 aggttaaaaa cagggaaatt ataagtgcag agattaacat ttcacaaatg tttagtgaaa 1561 catttgtgaa aaaagaagac taaattaaga cctgagctga aataaagtga gtggaaatgg 1621 aaataatggt tatatctaaa acatgtagaa aaagagtaac tggtagattt tgttaacaaa 1681 ttaaagaata aagttagaca agcaactggt tgactaatac attaagcgtt tgagtctaag 1741 atgaaaggag aacactggtt atgttgatag aatgataaaa agggtcgggc gcggaggctc 1801 acgcctgtaa tcccagccct ttgggaggcc gaggtgggca gatcacgaag tcagtagttt 1861 gagaccagcc tggccaacat agtgaaaccc cgtctceact aaaaatacaa aaaaaaaatt 1921 agctgggtgt ggtggcagtc acctgtagtc ccagctactt gggaggctga ggcaggagaa 1981 tcgcttcaac ctgggaggcg gaggttgcag tgagccgaga tcgcaccagt gcactccagc 2041 cttggtgaca atgggagact ccatctcaaa aaaaaaaaaa aaaaaaaaaa agataaaaag 2101 tcagaaatct gaaaagtgga ggaagagtac aaatagacct aaattaagct catttttagg 2161 ctttgatttt ggggagacaa agggaaatgc agccatagag ggcctgatga catccaatac 2221 agagttctgg taaagataaa atttgataca ggtttggtgt cattataaga gaaatcatta 2281 ttaaatgaag caagttaaca ctctaagaga attattttga gatagaagtg aagctaagct 2341 aaacttcaca tgcctataat tggagggaaa aactaaggat aaaatctagc ctagaagata 2401 caataattag tcataaacat gcattgtgaa actgtagaga gcaggtagcc caaaatagag 2461 aaagattaga taaagagaaa ataagtatcc atcagagaca gtatctctag gcttgggcaa 2521 gagaaaagtc cacagtgata agcaactcca cctaaggcat gaatatgcgg cagagaaaac 2581 agcaatagtg aatgaatgca aaaggtgctg agaaattcca cacatgagta ttgtgatgag 2641 taaatgaata aaacatttgc aaagaccttt agagaaagag aatgggagca tatgtgagaa 2701 ataagatagt tgattatgaa tagaaggtag tgaagaaaag caagctaaga aaaaattctg 2761 tttataaaag aaggaaaaga tagtttatgt ttttagccta agtataagag tcctacagat 2821 ggactgaaaa aaatcagtct gagagtatta gtcacaatta atgaaataat tacattttat 2881 gtattgagga tgccaagatt aaaaggtgac aggtagatgt taatttccct agattgtgaa 2941 agtgatcacg acaatcacac aacaaataat taagtgactt ggtatgcttt atttaattgt 3001 agggcctgag gttttccatt ctcatttttc taaaatacaa ttttgtttct ccaaatttga 3061 cagcagaata aaaaccctac cctttcactg tgtatcatgc taagctgcat ctctactctt 3121 gatcatctgt aggtattaat cacatcactt ccatggcatg gatgttcaca tacagactct 3181 taaccctggt ttaccaggac ctctaggagt ggatccaatc tatatcttta cagttgtata 3241 gtatatgata tctcttttat ttcactcaat ttatattttc atcattgact acatatttct 3301 tatacacaac acacaattta tgaatttttt ctcaagatca ttctgagagt tgccccaccc 3361 tacctgcctt ttatagtatg cccacctcag gcagacacag agcacaatgc tggggttctc 3421 ttcacactat cactgcccca aattgtcttt ctaaatttca acttcaatgt catcttctcc 3481 atgaagacca ctgaatgaac accttttcat ccagccttaa tttcttgctc cataactact 3541 ctatcccacg atgcagtatt gtatcattaa ttattagtgt gcttgtgacc tccttatgta 3601 ttctcaatta cctgtatttg tgcaataaat tggaataatg taacttgaaa aaaaaaaa SEQ ID NO: 8 = Mus musculus membrane-spanning 4-domains, subfamily A, member 2 (Ms4a2), mRNA = NCBI Reference Sequence: NM_013516.1    1 ggatagccca attaatgaaa aaatggacac agaaaatagg agcagagcag atcttgctct   61 cccaaatcca caagaatcct ccagtgcacc tgacattgaa ctcttggaag catctcctgc  121 caaagcagcc ccaccaaagc agacatggcg gacatttttg aagaaagagt tggagttcct  181 gggagcaaca caaattctgg ttggtttgat atgcctttgt tttggaacaa ttgtctgctc  241 cgtactctat gtttcagact ttgatgaaga agtgctttta ctttataaac taggctatcc  301 attctggggt gcagtgctgt ttgttttgtc tggatttttg tcaattatct ccgaaagaaa  361 aaacacattg tatctggtga gaggcagcct gggagcaaac attgtcagta gcatcgctgc  421 agggacgggg atcgccatgc tgatcctcaa tctgaccaat aacttcgctt atatgaacaa  481 ctgcaagaat gtaaccgaag acgacggctg ctttgtggct tctttcacca cagaactggt  541 gttgatgatg ctgtttctca ccatcctggc cttttgcagt gctgtgttgt tcactatcta  601 taggattgga caagagttag aaagtaaaaa ggtcccagat gatcgtcttt atgaagaatt  661 aaatgtgtat tcaccaattt acagtgagtt ggaagacaaa ggggaaacat cttctccagt  721 tgattcataa gaatcagggg accaggacaa tctgattcaa gtataatctt gaaagttgat  781 ctttttacaa aattctcgca aaatttctgt ttgttccaca ttctgtcagt ttttcaattg  841 gattgttctg cagatgccac tcttttagtt atgctgtatc tgatcttcta aatatctccc  901 tttttgcgga tatcattcac tccaattttc ttgttttgtg tcacaatttc acatacatct  961 tttctggaaa gtcatcaagg aataagttgg ctttattgta tgtctacttt SEQ ID NO: 9 = human gamma subunit FcERI = NCBI Acc. No. NM_004106    1 cagaacggcc gatctccagc ccaagatgat tccagcagtg gtcttgctct tactcctttt   61 ggttgaacaa gcagcggccc tgggagagcc tcagctctgc tatatcctgg atgccatcct  121 gtttctgtat ggaattgtcc tcaccctcct ctactgtcga ctgaagatcc aagtgcgaaa  181 ggcagctata accagctatg agaaatcaga tggtgtttac acgggcctga gcaccaggaa  241 ccaggagact tacgagactc tgaagcatga gaaaccacca cagtagcttt agaatagatg  301 cggtcatatt cttctttggc ttctggttct tccagccctc atggttggca tcacatatgc  361 ctgcatgcca ttaacaccag ctggccctac ccctataatg atcctgtgtc ctaaattaat  421 atacaccagt ggttcctcct ccctgttaaa gactaatgct cagatgctgt ttacggatat  481 ttatattcta gtctcactct cttgtcccac ccttcttctc ttccccattc ccaactccag  541 ctaaaatatg ggaagggaga acccccaata aaactgccat ggactggact c SEQ ID NO: 10 = murine gamma subunit FcERI = NCBI Acc. No. NM_010185    1 ggagggaact gtggtcaggg aactgttcgt gggcacagct gcgcagttct gtcagcgcag   61 cgcgatcacc agctcccagc gccgcagccc ccagcgcacc caggatgatc tcagccgtga  121 tcttgttctt gctccttttg gtggaacaag cagccgccct gggagagccg cagctctgct  181 atatcctgga tgctgtcctg tttttgtatg gtattgtcct taccctactc tactgtcgac  241 tcaagatcca ggtccgaaag gcagctatag ccagccgtga gaaagcagat gctgtctaca  301 cgggcctgaa cacccggagc caggagacat atgagactct gaagcatgag aaaccacccc  361 agtagcttca gaacagacgt gcttggctgc attcttttcc cacttctaat tctctccgag  421 ccctcttggt cacctctgtg ctttgaaggt tggctgacct tattcacata atgatgctag  481 ctaggctcta catcagtgta cactggcagg tccccatctc cgttaaagac ttactcactg  541 acatttctct tcttccagcc tcctttgctt catttctttt tccttccctg atcctcgact  601 ctcactaaac aatggaaagg gattatcccc caataaagct gccagagacc tgactcaaaa  661 aaaaaaaaaa aaaaaaaaaa aaa SEQ ID NO; 11 = human CD23 = NCBI Acc. No. NM_002002    1 agtggctcta ctttcagaag aaagtgtctc tcttcctgct taaacctctg tctctgacgg   61 tccctgccaa tcgctctggt cgaccccaac acactaggag gacagacaca ggctccaaac  121 tccactaacc agagctgtga ttgtgcccgc tgagtggact gcgttgtcag ggagtgagtg  181 ctccatcatc gggagaatcc aagcaggacc gccatggagg aaggtcaata ttcagagatc  241 gaggagcttc ccaggaggcg gtgttgcagg cgtgggactc agatcgtgct gctggggctg  301 gtgaccgccg ctctgtgggc tgggctgctg actctgcttc tcctgtggca ctgggacacc  361 acacagagtc taaaacagct ggaagagagg gctgcccgga acgtctctca agtttccaag  421 aacttggaaa gccaccacgg tgaccagatg gcgcagaaat cccagtccac gcagatttca  481 caggaactgg aggaacttcg agctgaacag cagagattga aatctcagga cttggagctg  541 tcctggaacc tgaacgggct tcaagcagat ctgagcagct tcaagtccca ggaattgaac  601 gagaggaacg aagcttcaga tttgctggaa agactccggg aggaggtgac aaagctaagg  661 atggagttgc aggtgtccag cggctttgtg tgcaacacgt gccctgaaaa gtggatcaat  721 ttccaacgga agtgctacta cttcggcaag ggcaccaagc agtgggtcca cgcccggtat  781 gcctgtgacg acatggaagg gcagctggtc agcatccaca gcccggagga gcaggacttc  841 ctgaccaagc atgccagcca caccggctcc tggattggcc ttcggaactt ggacctgaag  901 ggggagttta tctgggtgga tgggagccac gtggactaca gcaactgggc tccaggggag  961 cccaccagcc ggagccaggg cgaggactgc gtgatgatgc ggggctccgg tcgctggaac 1021 gacgccttct gcgaccgtaa gctgggcgcc tgggtgtgcg accggctggc cacatgcacg 1081 ccgccagcca gcgaaggttc cgcggagtcc atgggacctg attcaagacc agaccctgac 1141 ggccgcctgc ccaccccctc tgcccctctc cactcttgag catggataca gccaggccca 1201 gagcaagacc ctgaagaccc ccaaccacgg cctaaaagcc tctttgtggc tgaaaggtcc 1261 ctgtgacatt ttctgccacc caaacggagg cagctgacac atctcccgct cctctatggc 1321 ccctgccttc ccaggagtac accccaacag caccctctcc agatgggagt gcccccaaca 1381 gcaccctctc cagatgagag tacaccccaa cagcaccctc tccagatgag agtacacccc 1441 aacagcaccc tctccagatg agagtacacc ccaacagcac cctctccaga tgcagcccca 1501 tctcctcagc accccaggac ctgagtatcc ccagctcagg tggtgagtcc tcctgtccag 1561 cctgcatcaa taaaatgggg cagtgatggc ctcccacatt tgtccccttc ttggaaaaaa SEQ ID NO: 12 = murine CD23 = NCBI Acc. No. NM_013517    1 agaagactac tgtcttcaac acactagcct gagctacctt atccaagtgc tccacatatt   61 ccagaaggag aaggacagac ttcaagttca aatcacttcc agagctgtga gtgacaagtg  121 ccttggcagg tagtgcacgc ctcatcactg aaaggatcca aacaagactg ccatggaaga  181 aaatgaatac tcaggatact gggaacctcc tagaaagcgt tgctgctgtg caagacgtgg  241 gacacagctc atgttggtgg ggctgctgag cacagcaatg tgggceggcc tgctggccct  301 gcttcttctg tggcactggg aaacggagaa gaatctaaaa cagctgggag acactgcaat  361 tcagaatgtc tctcatgtta ccaaggactt acaaaaattc cagagtaatc aattggccca  421 gaagtcccag gttgttcaga tgtcacaaaa cttgcaagaa ctccaagctg aacagaagca  481 aatgaaagct caggactctc ggctctccca gaacctgacc ggactccagg aggatctaag  541 gaacgcccaa tcccagaact caaaactctc ccagaacctg aacagactcc aagacgatct  601 agtcaacatc aaatccctgg gcttgaatga gaagcgcaca gcctccgatt ctctagagaa  661 actccaggaa gaggtggcaa agctgtggat agagatactg atttcaaagg gaactgcatg  721 caacatatgt cccaagaact ggctccattt ccaacagaag tgctactatt ttggcaaggg  781 ctccaagcag tggatccagg ccaggttcgc ctgcagtgac ctgcaagggc gactagtcag  841 catccacagc caaaaggaac aggacttcct gatgcaacac atcaacaaga aggattcctg  901 gattggcctc caggatctca atatggaggg agagtttgta tggtcggacg ggagccctgt  961 gggttatagc aactggaatc caggggagcc caataacggg ggccagggtg aggactgtgt 1021 gatgatgcgg ggatccggcc agtggaacga cgccttctgc cgcagctact tggatgcatg 1081 ggtgtgtgag cagctggcaa catgtgagat atctgccccc ttagcctctg tgactccaac 1141 aaggcccacc ccaaaaagtg aaccctgaca aacttctgct cacactcttc tggatttctc 1201 ctctaccttt atcgtggaaa cagctgggcc ctgaggatac ccctatcagg gcccagggcc 1261 ctctctgtga ccgaaggctt tgattatgtt cccacccata ctgaagcagc tggtggatgc 1321 cagctcctgc cagctaccca gaaaccctct ccagctctcc agctaagctg gccatcccat 1381 tccatctgcc ttcctcaaac ctgggcccca gccttgctag ctccctgact acgggcatgc 1441 atgtgggcag ctgagccaac cagggagctg ctgagaacaa agatttcgaa ggcttctttt 1501 gcagtcccca cctcctatca agttccccac tttctccccc tcggcatcag agaacagggg 1561 ttccctttcc ccaggatctg ggatgagtcc tcccatcaag tttgcatcag tggtcccagc 1621 actccgaccc tccttggagg ctgcaccagg tgtgctcctg gtgcgggagg tattgaagga 1681 actctaaaca gctccagcaa ggcgagcctg gctctgtctg gtaggcctgg cccttctctc 1741 ccattccttc taccttacta aaagctgtta gagaacagtc ctaaagctag cccccaaggt 1801 ctattccctt atttggccac ttcctcctcc tgaggctgac tacaaggtcc agctatccaa 1861 gtactgaagt ctaacatcaa aagccccctt tgtctcacct aagtagcaat gcccaatcaa 1921 aatacaccat cacatcatag cccagtctaa cagaccgccc tttttctctt cataaaatta 1981 cacctgcaac caggcgtagt ggtgcaggcc tttagtccca gcacttggga ggcagagaca 2041 agcgaatttc tgagttcgag gccagcctgg tctacaaagt gagttccagg acagccaggg 2101 ctacacagag aaaccctgtc tcgaagaaag aaaaaaaaaa aaaattacac ctgcaaggtc 2161 acttgcaggc tgctgttttt ctgcctgagt cagagggcag ccacttaact tttcttccct 2221 gcttaataaa ggatctctgt g SEQ ID NO: 13 = human NFKappaB = GenBank Acc. No. M58603    1 ggccaccgga gcggcccggc gacgatcgct gacagcttcc cctgcccttc ccgtcggtcg   61 ggccgccagc cgccgcagcc ctcggcctgc acgcagccac cggccccgct cccggagccc  121 agcgccgccg aggccgcagc cgcccggcca gtaaggcggc gccgcccgcg gccaccgcgg  181 gccctgccgt tccctccgcc gcgctgcgcc atggcgcggc gctgactggc ctggcccggc  241 cccgccgcgc tcccgctcgc cccgacccgc actcgggccc gcccgggctc cggcctgccg  301 ccgcctcttc cttctccagc cggcaggccc cgccgcttag gagggagagc ccacccgcgc  361 caggaggccg aacgcggact cgccacccgg cttcagaatg gcagaagatg atccatattt  421 gggaaggcct gaacaaatgt ttcatttgga tccttctttg actcatacaa tatttaatcc  481 agaagtattt caaccacaga tggcactgcc aacagatggc ccataccttc aaatattaga  541 gcaacctaaa cagagaggat ttcgtttccg ttatgtatgt gaaggcccat cccatggtgg  601 actacctggt gcctctagtg aaaagaacaa gaagtcttac cctcaggtca aaatctgcaa  661 ctatgtggga ccagcaaagg ttattgttca gttggtcaca aatggaaaaa atatccacct  721 gcatgcccac agcctggtgg gaaaacactg tgaggatggg atctgcactg taactgctgg  781 acccaaggac atggtggtcg gcttcgcaaa cctgggtata cttcatgtga caaagaaaaa  841 agtatttgaa acactggaag cacgaatgac agaggcgtgt ataaggggct ataatcctgg  901 actcttggtg caccctgacc ttgcctattt gcaagcagaa ggtsgagggg accggcagct  961 gggagatcgg gaaaaagagc taatccgcca agcagctctg cagcagacca aggagatgga 1021 cctcagcgtg gtgcggctca tgtttacagc ttttcttccg gatagcactg gcagcttcac 1081 aaggcgcctg gaacccgtgg tatcagacgc catctatgac agtaaagccc ccaatgcatc 1141 caacttgaaa attgtaagaa tggacaggac agctggatgt gtgactggag gggaggaaat 1201 ttatcttctt tgtgacaaag ttcagaaaga tgacatccag attcgatttt atgaagagga 1261 agaaaatggt ggagtctggg aaggatttgg agatttttcc cccacagatg ttcatagaca 1321 atttgccatt gtcttcaaaa ctccaaagta taaagatatt aatattacaa aaccagcctc 1381 tgtgtttgtc cagcttcgga ggaaatctga cttggaaact agtgaaccaa aacctttcct 1441 ctactatcct gaaatcaaag ataaagaaga agtgcagagg aaacgtcaga agctcatgcc 1501 caatttttcg gatagtttcg gcggtggtag tggtgccgga gctggaggcg gaggcatgtt 1561 tggtagtggc ggtggaggag ggggcactgg aagtacaggt ccagggtata gcttcccaca 1621 ctatggattt cctacttatg gtgggattac tttccatcct ggaactacta aatctaatgc 1681 tgggatgaag catggaacca tggacactga atctaaaaag gaccctgaag gttgtgacaa 1741 aagtgatgac aaaaacactg taaacctctt tgggaaagtt attgaaacca cagagcaaga 1801 tcaggagccc agcgaggcca ccgttgggaa tggtgaggtc actctaacgt atgcaacagg 1861 aacaaaagaa gagagtgctg gagttcagga taacctcttt ctagagaagg ctatgcagct 1921 tgcaaagagg catgccaatg cccttttcga ctacgcggtg acaggagacg tgaagatgct 1981 gctggccgtc cagcgccatc tcactgctgt gcaggatgag aatggggaca gtgtcttaca 2041 cttagcaatc atccaccttc attctcaact tgtgagggat ctactagaag tcacatctgg 2101 tttgatttct gatgacatta tcaacatgag aaatgatctg taccagacgc ccttgcactt 2161 ggcagtgatc actaagcagg aagatgtggt ggaggatttg ctgagggctg gggccgacct 2221 gagccttctg gaccgcttgg gtaactctgt tttgcaccta gctgccaaag aaggacatga 2281 taaagttctc agtatcttac tcaagcacaa aaaggcagca ctacttcttg accaccccaa 2341 cggggacggt ctgaatgcca ttcatctagc catgatgagc aatagcctgc catgtttgct 2401 gctgctggtg gccgctgggg ctgacgtcaa tgctcaggag cagaagtccg ggcgcacagc 2461 actgcacctg gctgtggagc acgacaacat ctcattggca ggctgcctgc tcctggaggg 2521 tgatgcccat gtggacagta ctacctacga tggaaccaca cccctgcata tagcagctgg 2581 gagagggtcc accaggctgg cagctcttce caaagcagca ggagcagatc ccctggtgga 2641 gaactttgag cctctctatg acctggatga ctcttgggaa aatgcaggag aggatgaagg 2701 agttgtgcct ggaaccacgc ctctagatat ggccaccagc tggcaggtat ttgacatatt 2761 aaatgggaaa ccatatgagc cagagtttac atctgatgat ttactagcac aaggagacat 2821 gaaacagctg gctgaagatg tgaagctgca gctgtataag ttactagaaa ttcctgatcc 2881 agacaaaaac tgggctactc tggcgcagaa attaggtctg gggatactta ataatgcctt 2941 ccggctgagt cctgctcctt ccaaaacact tatggacaac tatgaggtct ctgggggtac 3001 agtcagagag ctggtggagg ccctgagaca aatgggctac accgaagcaa ttgaagtgat 3061 ccaggcagcc tccagcccag tgaagaccac ctctcaggcc cactcgctgc ctctctcgcc 3121 tgcctccaca aggcagcaaa tagacgagct ccgagacagt gacagtgtct gcgacacggg 3181 cgtggagaca tccttccgca aactcagctt taccgagtct ctgaccagtg gtgcctcact 3241 gctaactctc aacaaaatgc cccatgatta tgggcaggaa ggacctctag aaggcaaaat 3301 ttagcctgct gacaatttcc cacaccgtgt aaaccaaagc cctaaaattc cactgcgttg 3361 tccacaagac agaagctgaa gtgcatccaa aggtgctcag agagccggcc cgcctgaatc 3421 attctcgatt taactcgaga ccttttcaac ttggcttcct ttcttggttc ataaatgaat 3481 tttagtttgg ttcacttaca gatagtatct agcaatcaca acactggctg agcggatgca 3541 tctggggatg aggttgctta ctaagctttg ccagctgctg ctggatcaca gctgctttct 3601 gttgtcattg ctgttgtccc tctgc SEQ ID NO: 14 = murine NFKappaB = GenBank Acc. No. AY521462    1 atggcagacg atgatcccta cggaactggg caaatgtttc atttgaacac tgctttgact   61 cactcaatat ttaatgcaga attatattca ccagaaatac cactgtcaac agatggccca  121 taccttcaaa tattagagca accaaaacag aggggatttc gattccgcta tgtgtgtgaa  181 ggcccatcac acggagggct tccgggagcc tctagtgaga agaacaagaa atcctaccca  241 caggtcaaaa tttgcaacta tgtggggcct gcaaaggtta tcgttcagtt ggtcacaaat  301 ggaaaaaaca tccacctgca cgcccacagc ctggtgggca agcactgtga ggacggggta  361 tgcaccgtaa cagcaggacc caaggacatg gtggttggct ttgcaaacct gggaatactt  421 catgtgacta agaaaaaggt atttgaaaca ctggaagcac ggatgacaga ggcgtgtatt  481 aggggctata atcctggact tctggtgcat tctgaccttg cctatctaca agcagaaggc  541 ggaggagacc ggcaactcac agacagagag aaggagatca tccgccaggc agccgtgcag  601 cagaccaagg agatggacct gagcgtggtg cgcctcatgt tcacagcctt cctccctgac  661 agcactggca gcttcactcg gagactggag cctgtggtgt cagacgccat ctatgatagc  721 aaagccccga atgcatccaa cctgaaaatc gtgagaatgg acagaacagc aggatgtgtg  781 acgggagggg aggagattta ccttctctgt gacaaggttc agaaagatga catccagatt  841 cggttttatg aagaggaaga aaatggcgga gtttgggaag gatttgggga cttttccccc  901 acggatgttc atagacagtt tgccattgtc ttcaaaacgc caaagtataa ggatgtcaac  961 attacaaagc cagcttccgt gtttgttcag cttcggagga aatcagacct ggaaactagt 1021 gaaccgaaac cctttctcta ctaccctgaa atcaaagaca aagaggaagt gcaaaggaaa 1081 cgccagaagc ttatgccgaa cttctcggac agcttcggcg gcggcagtgg agcgggagcc 1141 ggtggtggag gcatgttcgg tagtggcggt ggcggaggga gtaccggaag ccctggccca 1201 gggtatggct actcgaacta cggatttcct ccctacggtg ggattacatt ccatcccgga 1261 gtcacgaaat ccaacgcagg ggtcacccat ggcaccataa acaccaaatt taaaaatggc 1321 cctaaagatt gtgccaagag tgatgacgag gagagtctga ctctccctga gaaggaaact 1381 gaaggtgaag ggcccagcct gcccatggcc tgcaccaaga cggaacccat cgccttggca 1441 tccaccatgg aagacaagga gcaggacatg ggatttcagg ataacctctt tctcgagaag 1501 gctctgcagc tcgccaggcg acacgccaac gcccttttcg actacgcagt gacgggggat 1561 gtgaagatgt tgctggccgt gcaacgccat ctcaccgccg tgcaggatga gaatggggac 1621 agtgtcttac acttagccat catccacctc cacgctcagc tcgtgaggga tctgctggaa 1681 gtcacatctg gtttgatctc tgatgacatc atcaacatga gaaatgacct gtatcagaca 1741 cctctgcact tggccgtgat caccaagcag gaagatgtag tagaggattt gctgagggtt 1801 ggggctgacc tgagccttct ggaccgctgg ggcaactctg tcctgcacct agctgccaaa 1861 gaaggacacg acagaatcct cagcatcctg ctcaagagca gaaaagcagc gccccttatc 1921 gaccacccca atggggaagg tctaaatgcc atccacatag ctgtgatgag caatagcctg 1981 ccatgtctgc tgctgctggt ggctgccggg gcagaagtca atgctcagga gcagaagtct 2041 gggcgcacag cgctgcacct ggccgtggag tacgacaaca tctccttggc tggctgcctg 2101 cttctggagg gtgatgccca cgtggacagt accacctatg atgggactac acctctgcat 2161 atagcggccg gaagagggtc caccagactg gcagctcttc tcaaagcagc aggagcagac 2221 cccctggtgg agaactttga gcctctctat gacctggacg actcttggga gaaggctgga 2281 gaagatgagg gagtggtgcc aggtaccaca cccctggaca tggctgccaa ctggcaggta 2341 tttgacatac taaatgggaa accgtatgag cctgtgttca catctgatga tatactacca 2401 caaggggaca tgaagcagct gacagaagac acgaggctac aactctgcaa actgctggaa 2461 attcctgatc cagacaaaaa ctgggccact ctggcacaga agttgggtct ggggatattg 2521 aacaatgcct tccggctgag tcctgctcct tctaaaactc tcatggacaa ctatgaggtc 2581 tctgggggta ccatcaaaga gctgatggag gccctgcaac agatgggcta cacagaggcc 2641 attgaagtga tccaggcagc cttccgcacc ccggcaacca cagcctccag ccccgtgacc 2701 actgctcagg tccactgtct gcctctctcg tcttcctcca cgaggcagca catagatgaa 2761 ctccgggata gtgacagcgt ctgtgacagt ggtgtggaga catccttccg caaactcagc 2821 tttacagagt ctcttactgg agacagccca ctgctatctc tgaacaaaat gccccacggt 2881 tatgggcagg aaggacctat tgaaggcaaa atttagcctg ctggccgttc ccccacactg 2941 tgtaaaccaa agccctgaca gtccattgca tcgtcccaaa ggaggaaggc aaagcgaatc 3001 caaaggtgct ggagaatcgc cggcctgcag ggtcactcga tttcattcaa ggccttccga 3061 atttggcgtc cttcttggtt ctgaaatgaa atgtagttgc cacgcacaga cggtgtctag 3121 caatcatggc gctcgctcgc tcagctgcac tctatggctc aggtgcagtg tcttgagctt 3181 tctctgctgc tactggatca catttgcttt gtgttgttac tgctgtccct ccgctgggtt 3241 cctgctgtca ttaaaaggtg tcgctgtccc cacccggtgt ccttectagc catctactgt 3301 aagttgtgca ttcaaattaa gattaaggaa aaacatattt ttaaatgagt accttgatgc 3361 gcaataaaaa aaaagacatt tcttttttta atgtggttta tctgtgattt aaaaataaaa 3421 aacacatgaa cttatcaata tttaaaacat gctacaatca gtgntgaaaa tagtattttc 3481 cccgttttat gcattttaca tttgtaaata tgttttctaa tcaatacttt aaaagaagaa 3541 tgttgaattt ataaaatgct atttactttt ttatttataa taaagtacag cacatgtgac 3601 t SEQ ID NO: 15 = 2. Homologous CD23: (Also from 3′ end) gca gaa ggc gtc gtt cca SEQ ID NO: 16 = Mouse FcERI-alpha: cca gtg acc atc gcc cct g SEQ ID NO: 17 = mFcERIa control cag ggg cga tgg tca ctg g SEQ ID NO: 18 = 5. hFcERIalpha-1: aca gta gag tag ggg att cca tgg cag gag cca tct tct tca tgg act cc SEQ ID NO: 19 = hFcERIalpha-2: ttc aag gag acc tta ggt ttc tga ggg act gct aac acg cca tct gga gc SEQ ID NO: 20 = hFcERII (CD23): tct ctg aat att gac ctt cct cca tgg cgg tcc tgc ttg gat tct ccc ga

Various publications are cited herein, the contents of which are hereby incorporated by reference in their entireties. 

1. A method of treating an inflammatory lung disorder comprising administering, to a subject in need of such treatment, an effective amount of microspheres carrying a mixture of oligonucleotides comprising at least one oligonucleotide that inhibits expression of an IgE receptor and at least one oligonucleotide that inhibits expression of NFkappaB.
 2. The method of claim 1, wherein the inflammatory lung disorder is asthma.
 3. The method of claim 1, where the oligonucleotides are oligodeoxynucleotides.
 4. The method of claim 1, where the oligonucleotide that inhibits expression of an IgE receptor inhibits expression of FcERI.
 5. The method of claim 1, where the oligonucleotide that inhibits expression of an IgE receptor inhibits expression of CD23.
 6. The method of claim 1, where the oligonucleotide that inhibits expression of NfkappaB inhibits expression of p65.
 7. A formulation comprising microspheres carrying a mixture of oligonucleotides comprising at least one oligonucleotide that inhibits expression of an IgE receptor and at least one oligonucleotide that inhibits expression of NfkappaB.
 8. The formulation of claim 7, where the oligonucleotide that inhibits expression of an IgE receptor inhibits expression of FcERI.
 9. The formulation of claim 7, where the oligonucleotide that inhibits expression of an IgE receptor inhibits expression of CD23.
 10. The formulation of claim 7, where the oligonucleotide that inhibits expression of NfkappaB inhibits expression of p65.
 11. The formulation of claim 7, where a single microsphere carries a mixture of oligonucleotides.
 12. The formulation of claim 7, where a single microsphere carries only one species of oligonucleotide.
 13. A method of reducing pulmonary inflammation in a subject in need of such treatment comprising administering, to the subject, an effective amount of microspheres carrying a mixture of oligonucleotides comprising at least one oligonucleotide that inhibits expression of an IgE receptor and at least one oligonucleotide that inhibits expression of NFkappaB.
 14. The method of claim 13, wherein the pulmonary inflammation manifests as asthma.
 15. The method of claim 13, where the oligonucleotides are oligodeoxynucleotides.
 16. The method of claim 13, where the oligonucleotide that inhibits expression of an IgE receptor inhibits expression of FcERI.
 17. The method of claim 13, where the oligonucleotide that inhibits expression of an IgE receptor inhibits expression of CD23.
 18. The method of claim 13, where the oligonucleotide that inhibits expression of NFkappaB inhibits expression of p65. 